{"entity":{"iso2":null,"iso3":null,"name":"Madison","slug":"madison"},"indicator":{"licence":"OECD Terms and Conditions (attribution required)","slug":"air-pollution-cities-and-fuas-population-exposure-to-pm2-5","source":"Organisation for Economic Co-operation and Development","source_url":"https://data-explorer.oecd.org/vis?df[ds]=dsDisseminateFinalDMZ&df[id]=DSD_FUA_ENV@DF_POLLUTION","title":"Air pollution - Cities and FUAs \u2014 Population exposure to PM2.5","unit":"Microgrammes per cubic metre"},"observations":[{"date":"2021-01-01","value":16.6467},{"date":"2022-01-01","value":10.8026},{"date":"2023-01-01","value":0.0325899},{"date":"2024-01-01","value":8.25424},{"date":"2025-01-01","value":7.49371}],"summary":{"latest_period":"2025-01-01","latest_value":7.49371,"max":16.6467,"mean":8.64597,"min":0.0325899,"of":1324,"rank":1265,"trend":"volatile"}}